Thread-guiding device for knitting-machines



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' H. CUR-TIN.

THREAD G UIDING DEVICE POR- KNITTING MAGHINES.

N0. 412,417 5. i Y Pate ted 0ot.'8, 1889.

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(No Modell) H. CURTIN. K THRBMA GUIDING DBV-10B FORKNITTING MACHINES.

No. 412,475.. Patented oct. 8.18.89.

IIIIII INVENTUR BY M m4,

l ATTORNEYS WITNESSES: l 4 0% @MMM for closing the hooks of the needles as theyV UNITED STATES l PATENT OEEICE,a

HENRY OURTIN, OF LITTLE FALLS, NEW YORK.

THREAD-GUIDING DEVICE FOR KNlTTlNG-MACHINES.

SPECIFIGTIQN forming part of Letters Patent No. 412,475, dated October8,v1889.

Application filed January 23, y1889r Serial No. 297,2691 (No model.)

drawings, isa full, clear, and exact description.

This invention consists, first, in a novel construction of a thread-guide designed to be used in connection with reciprocating needles of a knitting-machine, and which is simple, efficient, and durable in its operation, and,

secondly, in .a novel adjustable support fory said thread-guide, all as hereinafter more fully described, and specifically set forth in the claims. f

In the annexed drawings, Figure lis a side elevation of a knittingmachine equipped with my improved thread-guide. Fig. 2 is a top plan view of the same. Fig. 3 is an enlarged vertical transverse section of one side of the needle-cylinder with my improved thread-guide, illust-rating the adj u'stability of the latter; and Fig. 4 is a detached perspective view of one of the thread-guides.

Similar letters of reference indicate corresponding parts.

A represents the rotary needle-cylinder, which is of the usual and Well-known form and pertains to the class of knitting-machines in which the needles c c are reciprocated vertically between sinkers d d, fixed to the needle-cylinder, and are provided with latches descend through the loops of yarn previously formed on the needles.

R represents a ring, which is sustained in a horizontal position at the outside of the needle-cylinder, preferably by means of brackets.

B B, which are provided with vertical slots e, and are secured vertically adj ustably to the exterior of the upper cam-rin g P by bolts e', passing through the saidslots and into the aforesaid cam-ring. Said adjustable attachment of the aforesaid brackets allows the ring Rto be raised or lowered, as may be required to bring the thread-guides into proper position in relation to the top of the needle-cylinder. The cam-ring-P, I prefer to divide intotwo semicircular sections PS and P9, as described in another application for Letters Patent, Se rial No. 296,960, filed by me January 21,1889.

` In order to facilitate the attachment and detachment ofthe ring R, I divide the same also transversely directly over the joints of the cam-ring sections into two semicircular sections, each of which I support independently of the other by attaching to each section of the cam-ring P a sufficient number of brackets B B to support one of the sections of the ring R. I am thus enabled to remove either of the cam-ring sections without disturbing the attachments of the ring-sections R. The upper ends of the brackets are provided with eyes f, through which the ring-sections R pass, and set-screws f', connected to said eyes and engaging the ring, hold the latter in place.

On the ring R, I mount the thread-guides, which consist of brackets C C, distributed around the needle-cylinder, as shown by full lines and dotted lines in Fig. 2 of the drawings. Each of said brackets is formed with an eye b', by which it is mounted on the ring R, and in order to allow the bracket C to be tilted toward or from the needle-cylinder, and thus adjust the thread-guide in its position in relation to the path of the needles,Iform the ring R, which constitutes the thread-guide support, of a round bar or bar of circular form in cross-section of its body, and also form the eye Z9 of circular shape and of a diameter to neatly iit the ring. A set-screw b, inserted transversely into the eye b and engaging the ring R, retains the bracket C in its adj usted position. Said bracket is also formed with two lugs C and O,Which are perforated in line with each other and in a line radially to the needle-cylinder. The "perforation of the lug C is of a dialneter to permit a tubet to be inserted, which tube is retained therein by a set-screw u, passing transversely through the top of the lug` and engaging the tube.

In order to render the tube more durable,I form the same of glass or suitable vitrified mineral.

The bracket C is furthermore formed 'With an outwardly-extended arm a', which is slotted or provided with a passage, through which the thread runs, and from which the thread IOO mounted thereby on the aforesaid support and adapted to turn thereon toward and from the needle-cylinder, anda set-screw clamping the thread-guide in its position,substantially as described and shown.

2. In combination with the needle-cylinder and reciprocating needles, the bracket C, formed with the lugs C C, perforatedin line with each other, the tube t, inserted in the lug C', the set-screw u, retaining the tube in the lug, and the arni a, extending from the bracket and provided with a passage through which the thread runs, as set forth and shown.

3. In combination with the needle-cylinder and reciprocating needles, the ring R, of circular form in cross-section of its body, sustained at the outside of and concentric With the needle-cylinder, brackets C C, provided, respectively, with a circular eye b', and mounted thereby on the aforesaid ring, set-screws b Z), attached to the brackets and engaging the ring, and tubes zit on the brackets and having their inner ends over the path of the needles, substantially as described and shown.

In testimony whereof I have hereunto si gned mynaine, in the presence of two Witnesses, at Little Falls, in the county of-Herkimer,in the State of New York, this 15th day of January,

HENRY oURTIN. [n 8.]

Vitnesses:

I-IADLEY .I oNEs, WALLACE HosE. 

